Evaulation of Interaction Between Herbal Products and Anticoagulants

Early Identification of Adverse Reactions to Herbs

Status

Withdrawn

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT00071682

Enrollment

Registered

2003-10-30

Start date

2007-10-31

Completion date

2007-12-31

Last updated

2013-05-15

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Coagulation Disorders

Keywords

herbal medicine, alternative medicines, anticoagulation, side effects, bleeding, clotting

Brief summary

The purpose of this study is to determine if the use of herbal products interferes with normal anticoagulation, leading to either excessive thinning of the blood and bleeding problems or inadequate thinning of the blood and clotting problems. Many patients who are on long term anticoagulation, or blood thinning, for a variety of medical problems, also take herbal products. It is not yet known whether use of herbal products interferes with this anticoagulation, and puts patients at risk for bleeding or clotting. This study will carefully monitor patients who are taking herbs and anticoagulants to determine if their laboratory tests show signs of being affected by the herbs. The study will ask all patients about their herbal product use, so all reported herbs will be included and monitored.

Interventions

None listed

Study design

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

Inclusion criteria

* Taking longer-term (\>6 months) anticoagulation * Enrolled in one of Kaiser Permanente Northern California anticoagulation clinics

Countries

United States

Outcome results